US spot bitcoin ETFs recorded their strongest three-week inflow stretch of 2026, drawing $3.8 billion in net inflows through Friday even as the coin itself slipped below $79,000. The funds took in $986.9 million in the week ending September 4, according to SoSoValue data.
The run marks a sharp turnaround from earlier in the year. June 2026 was the worst month on record for the products at negative $4.5 billion, and year-to-date flows still sit roughly $1 billion in the red. Three strong weeks have nearly closed that gap, with cumulative net inflows since the January 2024 launch holding at $55.6 billion and total net assets at $101.3 billion at Friday’s close, per Cointelegraph.
The week’s biggest session came Thursday, when the funds absorbed $730.9 million, the largest single day since January. September’s month-to-date tally stands at $770.2 million across four trading days, three of them positive, according to the flow tracker at TFTC. At $101.3 billion in net assets, the products briefly touched $103.3 billion a day earlier before Friday’s dip and price pullback trimmed the figure. The biggest inflow day in the funds’ history remains November 7, 2024 at $1.4 billion, so Thursday’s number ranks high but not at the top.
Friday slowed, but did not reverse
Daily inflows cooled at the end of the week. Friday brought a net $174.6 million, the third straight positive session but far below Thursday’s surge. BlackRock’s IBIT accounted for $117.4 million of Friday’s total, about 67% of the day’s flow, while Fidelity’s FBTC added $57.2 million. Every other US spot bitcoin ETF recorded zero net flow, according to Farside Investors data.
That concentration is the detail traders are watching. The streak’s strength is real but narrow: two funds are carrying nearly all of it, and a single dominant buyer can turn quickly. IBIT alone holds about $62.5 billion in assets, more than half of the complex, so its flows set the tone for the whole category. Bitcoin’s price told a similar story, falling from around $81,200 on Thursday to briefly below $79,000 on Friday as a hot August jobs report shifted Federal Reserve expectations and pressured risk assets across the board.
| Date | Net flow |
|---|---|
| Sep 1, 2026 | -$236.5M |
| Sep 2, 2026 | +$101.1M |
| Sep 3, 2026 | +$730.9M |
| Sep 4, 2026 | +$174.6M |
Altcoin funds are losing the race
The rotation is uneven across the crypto ETF complex. Ether and XRP products faded while bitcoin funds accelerated. XRP-linked investment products saw weekly inflows drop from $110.5 million to $19 million, an 83% decrease, after an earlier run of 11 straight positive sessions had drawn about $170 million into the funds since August 18. Cumulative XRP ETF flows stand near $1.68 billion since those products launched in November 2025, small next to the bitcoin funds’ $55.6 billion.
Institutional holders disclosed in quarterly filings add context to who is buying. First 13F disclosures showed 30 firms holding Hyperliquid ETF shares including UBS, BMO and Jane Street, per CoinDesk. Goldman Sachs topped the list of XRP ETF holders with $87.4 million held as of June 30, followed by Jane Street and Millennium. These filings report positions as of mid-year, so they lag the current inflow wave, but they show the funds have moved well past their retail-only early days. The seven US spot XRP ETFs now hold about $2 billion in assets and 1.1 billion XRP tokens, roughly 1.1% of total supply.
What moves the tape next
The macro calendar dominates the near-term outlook. The August jobs report came in hot enough to revive rate-hike bets, and the ECB looks set for a second hike this week after euro-area inflation hit 3.3%, the fastest in nearly three years. Higher-for-longer rates in major economies pull liquidity away from assets with no yield, and bitcoin has traded like a risk asset in every recent episode of rate repricing. The dollar index already climbed to 99.15 on the jobs data, its strongest level in weeks, and the 10-year Treasury yield sits near 4.8%, its highest since November 2023.
Technically, traders are watching the $79,507 level. Holding it keeps a retest of $81,479 live, while a daily close below it exposes support near $74,131, where the Ichimoku Kijun and Supertrend indicators converge. Bitcoin traded near $79,600 at the time of writing, still up roughly 2.6% over seven days, so the weekly picture remains positive despite the Friday wobble.
The three-week ETF run also changes the supply picture. At current prices, $3.8 billion of net creation represents bitcoin permanently removed from float through fund custody, adding to a market where 57.6% of total crypto market cap already sits in bitcoin, according to CoinGecko. Miners, meanwhile, face their own squeeze: the El Reno, Oklahoma mining facility was condemned this week after a broken fire line leaked up to 3.8 million gallons of water during a regional drought, a reminder that operational costs keep climbing. Whether issuers keep creating shares at this pace depends less on crypto sentiment than on the Fed’s next move, which makes US inflation data and central bank decisions the events to watch this week.
For the funds themselves, the math is simple: 2026 remains a net-negative year until roughly $1 billion more of inflows arrive. Three weeks of strength have put that within reach, but Friday’s concentration in two funds shows the demand is narrower than the headline suggests.
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